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<title>Avisynth Overview</title>
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<h2>Overview</h2>
<h4><a href="quick_ref.htm" target="main">Quick Reference</a></h4>
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<h4><a href="getting_started.htm" target="main">Getting started</a></h4>

<h4><a href="syntax_sections.htm" target="main">AviSynth Syntax</a></h4>

<ul>

      <li><a href="syntax_ref.htm" target="main">Statements</a></li>
      <li><a href="syntax_script_variables.htm" target="main">Script variables</a></li>
      <li><a href="syntax_colors.htm" target="main">Colors</a></li>
      <li><a href="syntax_operators.htm" target="main">Operators</a></li>
      <li><a href="syntax_control_structures.htm" target="main">Control structures</a></li>
      <li><a href="syntax_internal_functions.htm" target="main">Internal functions</a>
        <ul>
          <li><a href="syntax_internal_functions_boolean.htm" target="main">Boolean functions</a></li>
          <li><a href="syntax_internal_functions_control.htm" target="main">Control functions</a></li>
          <li><a href="syntax_internal_functions_conversion.htm" target="main">Conversion functions</a></li>
          <li><a href="syntax_internal_functions_multithreading.htm" target="main">Multithreading
            functions</a> v2.6</li>
          <li><a href="syntax_internal_functions_numeric.htm" target="main">Numeric functions</a></li>
          <li><a href="syntax_internal_functions_runtime.htm" target="main">Runtime functions</a></li>
          <li><a href="syntax_internal_functions_script.htm" target="main">Script functions</a></li>
          <li><a href="syntax_internal_functions_string.htm" target="main">String functions</a></li>
          <li><a href="syntax_internal_functions_version.htm" target="main">Version functions</a></li>
        </ul>
      </li>
      <li><a href="syntax_clip_properties.htm" target="main">Clip properties</a></li>
      <li><a href="syntax_userdefined_scriptfunctions.htm" target="main">User defined script functions</a></li>
      <li><a href="syntax_runtime_environment.htm" target="main">Runtime environment</a></li>
      <li><a href="syntax_plugins.htm" target="main">Plugins</a></li>

<h4><a href="script_ref.htm" target="main">Scripting reference</a></h4>

      <li><a href="script_ref_execution_model.htm" target="main">The
        script execution model</a>
        <ul>
          <li><a href="script_ref_execution_model_sequence_events.htm" target="main">Sequence
            of events</a></li>


          <li><a href="script_ref_execution_model_filter_graph.htm" target="main">The
            (implicit) filter graph</a></li>


          <li><a href="script_ref_execution_model_fetching_frames.htm" target="main">The
            fetching of frames (from bottom to top)</a></li>


          <li><a href="script_ref_execution_model_lifetime_variables.htm" target="main">Scope
            and lifetime of variables</a></li>


          <li><a href="script_ref_execution_model_eval_scripts.htm" target="main">Evaluation
            of runtime scripts</a></li>


          <li><a href="script_ref_execution_model_perf_cons.htm" target="main">Performance
            considerations</a></li>
        </ul>
      </li>
      <li><a href="script_ref_user_functions.htm" target="main">User functions</a></li>
      <li><a href="script_ref_block_statements.htm" target="main">Block statements</a></li>
      <li><a href="script_ref_arrays.htm" target="main">Arrays</a></li>
      <li><a href="syntax_runtime_environment.htm" target="main">Scripting at runtime</a></li>

<h4><a href="corefilters.htm" target="main">Core Filters</a></h4>

  <li><a href="corefilters.htm#producing" target="main">Media file filters</a></li>
  <li><a href="corefilters.htm#color_conversion" target="main">Color conversion and adjustment filters</a></li>
  <li><a href="corefilters.htm#overlay_mask" target="main">Overlay and Mask filters</a></li>
  <li><a href="corefilters.htm#deformation" target="main">Geometric deformation filters</a></li>
  <li><a href="corefilters.htm#pixel_restoration" target="main">Pixel restoration filters</a></li>
  <li><a href="corefilters.htm#timeline_editing" target="main">Timeline editing filters</a></li>
  <li><a href="corefilters.htm#interlaced" target="main">Interlaced</a></li>
  <li><a href="corefilters.htm#audio" target="main">Audio</a></li>
  <li><a href="corefilters.htm#conditional" target="main">Conditional and meta filters</a></li>
  <li><a href="corefilters.htm#debug" target="main">Debug</a></li>

<h4><a href="externalplugins.htm" target="main">External Filters (Plugins)</a></h4>

  <li><a href="externalplugins.htm#general_info" target="main">General info</a></li>
  <li><a href="externalplugins.htm#deinterlacing" target="main">Deinterlacing &amp; Pulldown Removal</a></li>
  <li><a href="externalplugins.htm#spatio-temp-smoothers" target="main">Spatio-Temporal Smoothers</a></li>
  <li><a href="externalplugins.htm#spatial-smoothers" target="main">Spatial Smoothers</a></li>
  <li><a href="externalplugins.htm#temporal-smoothers" target="main">Temporal Smoothers</a></li>
  <li><a href="externalplugins.htm#sharpen" target="main">Sharpen/Soften</a></li>
  <li><a href="externalplugins.htm#resizers" target="main">Resizers</a></li>
  <li><a href="externalplugins.htm#subtitles" target="main">Subtitle (source)</a></li>
  <li><a href="externalplugins.htm#mpeg-decoders" target="main">MPEG Decoder (source)</a></li>
  <li><a href="externalplugins.htm#audio-decoders" target="main">Audio Decoder (source)</a></li>
  <li><a href="externalplugins.htm#video-metrics" target="main">Compare video quality</a></li>
  <li><a href="externalplugins.htm#broadcast" target="main">Broadcast Video</a></li>
  <li><a href="externalplugins.htm#misc" target="main">Misc Plugins</a></li>

<h4>Have a Question?</h4>

<li><a href="troubleshooting.htm" target="main">Troubleshooting</a> - read this first when getting problems</li> 
<li><a href="faq_sections.htm" target="main">FAQ</a> - general info about AviSynth</li>

<h4><a href="advancedtopics.htm" target="main">Advanced Topics</a></h4>

  <li><a href="advancedtopics.htm#Interlaced-FieldBased" target="main">Interlaced
vs Field-based</a></li>
  <li><a href="advancedtopics.htm#Sampling" target="main">Video Sampling</a></li>
  <li><a href="advancedtopics.htm#ColorSpaceConversions" target="main">ColorSpace
Conversions</a></li>
  <li><a href="advancedtopics.htm#HybridVideo" target="main">Hybrid Video</a></li>
  <li><a href="advancedtopics.htm#OpeningMedia" target="main">Importing Media into AviSynth</a></li>

<h4>Versions History
</h4>

      <li><a target="main" href="twopointsix.htm">AviSynth 2.6</a></li>
      <li><a target="main" href="twopointfive.htm">AviSynth 2.5</a></li>
      <li><a href="releasenotes.htm" target="main">Release Notes v2.58</a></li>
      <li><a href="changelist26.htm" target="main">Changelist 2.6</a></li>
      <li><a href="changelist.htm" target="main">Changelist</a></li>
      <li><a href="license.htm" target="main">License Terms</a></li>

<h4><a href="links.htm" target="main">Internet Links</a>
</h4>
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